Please can u help the transformer from maplins the miniture one how do I connect it to the vp130 charging unit I am a absolute novice to electrical fixes but can you put a picture up of how this transformer is connected

garryf, December 2014

Thanks for that information the reason why I bought the transformer is because I found a thread or fix on this website to fix a black and decker versapak charger just do not no what to do with the miniture transformer which was mentioned to buy and fit it somehow like I say do I add this transformer to the existing plug that I got with my black and decker powerdrill I just dont see how this works need advice
kind regards
garry

gazz47, December 2014

Transformers have two sides - primary (voltage applied) and secondary (voltage coming out)

Transformers are AC devices
The primary is often fed with mains voltage (but not always)
The secondary output is often a lower voltage (but not always)

Sometimes there is more than one secondary (often just one secondary with a wire tapped off some distance along for instance...

Connections 1&2 230 V Primary winding (two wires)
3&4 12 V secondary
4&5 12V Secondary

So there's 24V available between 3 and 5

You have 3 challenges
1) Be sure the transformer needs to be replaced
2) Obtain the correct transformer for the job - primary / secondary / wattage
3 Connect it the right way round

If you reverse the Primary and Secondary connections you may end up with very high voltages 230V going in and perhaps 4600v on the output - bangs and sparks too.

So take care - have someone with a bit of experience & confidence help you...

http://www.electronics-tutorials.ws/transformer/transformer-basics.html

http://www.electronics-tutorials.ws/transformer/multiple-winding-transformers.html

Good luck..., December 2014